I don't have a calculator on hand so i can't verify the first two for you. The third one has to do with a phenomenon called length contraction. As you approach the speed of light, the length measured by the person in the rocket ship of the distance between the earth and moon becomes contracted according to the equation [tex] L' = \frac{{L & & _0 }}{\gamma }[/tex] where [tex] L' [/tex] is the distance measured by the person traveling in the rocket ship.